transform($text); } class MarkdownExtraExtended_Parser extends MarkdownExtra_Parser { # Tags that are always treated as block tags: var $block_tags_re = 'figure|figcaption|p|div|h[1-6]|blockquote|pre|table|dl|ol|ul|address|form|fieldset|iframe|hr|legend'; var $default_classes; function MarkdownExtraExtended_Parser($default_classes = array()) { $default_classes = $default_classes; $this->block_gamut += array( "doFencedFigures" => 7, ); parent::MarkdownExtra_Parser(); } function transform($text) { $text = parent::transform($text); return $text; } function doHardBreaks($text) { # Do hard breaks: # EXTENDED: changed to allow breaks without two spaces and just one new line # original code /* return preg_replace_callback('/ {2,}\n/', */ return preg_replace_callback('/ *\n/', array(&$this, '_doHardBreaks_callback'), $text); } function doBlockQuotes($text) { $text = preg_replace_callback('/ (?>^[ ]*>[ ]? (?:\((.+?)\))? [ ]*(.+\n(?:.+\n)*) )+ /xm', array(&$this, '_doBlockQuotes_callback'), $text); return $text; } function _doBlockQuotes_callback($matches) { $cite = $matches[1]; $bq = '> ' . $matches[2]; # trim one level of quoting - trim whitespace-only lines $bq = preg_replace('/^[ ]*>[ ]?|^[ ]+$/m', '', $bq); $bq = $this->runBlockGamut($bq); # recurse $bq = preg_replace('/^/m', " ", $bq); # These leading spaces cause problem with 
 content, 
		# so we need to fix that:
		$bq = preg_replace_callback('{(\s*
.+?
)}sx', 
			array(&$this, '_doBlockQuotes_callback2'), $bq);
		
		$res = "" : " cite=\"$cite\">";
		$res .= "\n$bq\n";
		return "\n". $this->hashBlock($res)."\n\n";
	}

	function doFencedCodeBlocks($text) {
		$less_than_tab = $this->tab_width;
		
		$text = preg_replace_callback('{
				(?:\n|\A)
				# 1: Opening marker
				(
					~{3,}|`{3,} # Marker: three tilde or more.
				)
				
				[ ]?(\w+)?(?:,[ ]?(\d+))?[ ]* \n # Whitespace and newline following marker.
				
				# 3: Content
				(
					(?>
						(?!\1 [ ]* \n)	# Not a closing marker.
						.*\n+
					)+
				)
				
				# Closing marker.
				\1 [ ]* \n
			}xm',
			array(&$this, '_doFencedCodeBlocks_callback'), $text);

		return $text;
	}
	
	function _doFencedCodeBlocks_callback($matches) {
		$codeblock = $matches[4];
		$codeblock = htmlspecialchars($codeblock, ENT_NOQUOTES);
		$codeblock = preg_replace_callback('/^\n+/',
			array(&$this, '_doFencedCodeBlocks_newlines'), $codeblock);
		//$codeblock = "
$codeblock
";
		//$cb = "
" : " class=\"language-$matches[2]\">";
		$cb .= "$codeblock
";
		return "\n\n".$this->hashBlock($cb)."\n\n";
	}

	function doFencedFigures($text){
		$text = preg_replace_callback('{
			(?:\n|\A)
			# 1: Opening marker
			(
				={3,} # Marker: equal sign.
			)
			
			[ ]?(?:\[([^\]]+)\])?[ ]* \n # Whitespace and newline following marker.
			
			# 3: Content
			(
				(?>
					(?!\1 [ ]?(?:\[([^\]]+)\])?[ ]* \n)	# Not a closing marker.
					.*\n+
				)+
			)
			
			# Closing marker.
			\1 [ ]?(?:\[([^\]]+)\])?[ ]* \n
		}xm', array(&$this, '_doFencedFigures_callback'), $text);		
		
		return $text;	
	}
	
	function _doFencedFigures_callback($matches) {
		# get figcaption
		$topcaption = empty($matches[2]) ? null : $this->runBlockGamut($matches[2]);
		$bottomcaption = empty($matches[5]) ? null : $this->runBlockGamut($matches[5]);
		$figure = $matches[3];
		$figure = $this->runBlockGamut($figure); # recurse

		$figure = preg_replace('/^/m', "  ", $figure);
		# These leading spaces cause problem with 
 content, 
		# so we need to fix that - reuse blockqoute code to handle this:
		$figure = preg_replace_callback('{(\s*
.+?
)}sx', 
			array(&$this, '_doBlockQuotes_callback2'), $figure);
		
		$res = "
";
		if(!empty($topcaption)){
			$res .= "\n
$topcaption
";
		}
		$res .= "\n$figure\n";
		if(!empty($bottomcaption) && empty($topcaption)){
			$res .= "
$bottomcaption
";
		}
		$res .= "
";		
		return "\n". $this->hashBlock($res)."\n\n";
	}
}
?>